Finding the Fourth Proportional to 18,499,121.16, 27,758,249.62 and 13,423,398.36
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Solution
The fourth proportional to 18,499,121.16, 27,758,249.62 and 13,423,398.36 is: 20,142,040.22
Step by Step Solution
- Step 1: Write the proportion equation
18,499,121.16 : 27,758,249.62 = 13,423,398.36 : x - Step 2: Convert to fraction form
18,499,121.16/27,758,249.62 = 13,423,398.36/x - Step 3: Cross multiply
18,499,121.16x = 27,758,249.62 × 13,423,398.36 - Step 4: Simplify right side
18,499,121.16x = 372,610,042,425,578.62 - Step 5: Solve for x
x = 372,610,042,425,578.62/18,499,121.16 - Step 6: Final answer
x = 20,142,040.22
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.